P-Mo-112 NO-oxidation on Pt: Reversible Deactivation under Reaction Conditions

Monday, June 6, 2011
Ontario Exhibit Hall (Detroit Marriott Hotel at the Renaissance Center )
Wulf Hauptmann1, Martin Votsmeier2, Jürgen Gieshoff3, Alexander F. Scheuer4, Alfons Drochner5 and Herbert Vogel5, (1)Research and Development, Umicore, Hanau, Germany, (2)R&D, Umicore AG & Co. KG, Hanau, Germany, (3)Research and Development, Umicore, Hanau, AL, Germany, (4)Ernst-Berl Institut für Technische und Makromolekulare Chemie, Technical University of Darmstadt, Darmstadt, Germany, (5)Ernst-Berl Institut für Technische und Makromolekulare Chemie, Technical University Darmstadt, Darmstadt, Germany
It is shown that a platinum catalyst operated under a transient temperature profile exhibits an unexpected hysteresis behavior. The effect can be explained and quantitatively described by mechanistic kinetic model that includes the reversible oxidation of the platinum surface by NO2.

Extended Abstracts:

See more of: Monday Poster Session: Environmental Protection
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